Related Experiment Video
Updated: Aug 10, 2026

Chemical Gardens as Flow-through Reactors Simulating Natural Hydrothermal Systems
Published on: November 18, 2015
Carbonates and sulfates in CI chondrites: formation by aqueous activity on the parent body
1Smithsonian Institution, U.S. National Museum of Natural History, Washington, DC 20560, USA.
Abstract:
Compositions and morphologies of dolomites, breunnerites, Ca-carbonates, Ca-sulfates and Mg, Ni, Na-sulfates, and their petrologic interrelations, in four CI chondrites are consistent with their having been formed by aqueous activity on the CI parent body. Radiochronometric data indicate that this activity took place very early in Solar-System history. No evidence for original ("primitive") condensates seems to be present. However, alteration apparently took place without change in bulk meteorite composition.
Related Concept Videos
The Sulfur Cycle
Conditions on Early Earth
Formation of Complex Ions
Conditions on Early Earth
Hydration of Cement
Microbes and the Sulfur Cycle

